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Scour Critical Bridges in Pennsylvania

2,233 bridges in Pennsylvania at risk from water erosion around foundations.

Scour Critical Bridges

Scour is the erosion of soil and rock around a bridge's foundation caused by moving water. When foundations are exposed or undermined, a bridge can collapse even if its deck and superstructure are in good condition. Scour is the leading cause of bridge failures in the US. These 2,233 bridges in Pennsylvania have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
TRIBUTARY CONEWAGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1927 273
TRIB TO PINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1949 270
Pine Hollow Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1929 268
LITTLE SEWICKLEY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1889 266
BEAVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1929 266
SILVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1949 266
HAYCOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1854 265
LITTLE SCHUYLKILL RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1927 264
LARDINTOWN RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 263
BOOTH RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1941 262
TINICUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1919 260
OVER LARRYS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 259
BLACK BEAR RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1924 258
TRIB YOUGHIOGHENY RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 256
DRAKE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1908 256
WILSON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1915 255
DEWITT RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1934 254
OVER MAPLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1967 254
TRIB. OF SOUTH DRY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1957 253
TRIB TO PINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 253
Golden Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1956 253
WELLS CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1949 252
BIG SPRING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1890 251
MILLERS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1890 250
LICK RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1970 250
Humms Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1995 250
EAST BR WHITE CLAY CR Pennsylvania Scour Critical — Countermeasures Installed Poor 1968 250
Pierson Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1995 250
CONNOQUENESSING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1902 250
CRUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 250
SWAMP CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1924 250
MIDDLE BR. WHITE CLAY CR Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 250
OVER CONNEAUT CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1975 250
OVER STONE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1991 250
OVER CONNEAUT CREEK E.BR Pennsylvania Scour Critical — Countermeasures Installed Poor 1986 250
OVER CONNEAUT CREEK W.BR Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 250
OVER CONNEAUT OUTLET Pennsylvania Scour Critical — Countermeasures Installed Poor 1897 250
OVER HENDERSON RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1945 250
OVER WOODCOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 250
OVER OIL CREEK EAST BR. Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 250
OVER EAST BR. OIL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1901 250
OVER CONNEAUT CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 250
OVER LT.SUGAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 250
OVER WOODCOCK CREEK TR. Pennsylvania Scour Critical — Countermeasures Installed Fair 1989 250
LITTLE SHAMOKIN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 250
MOUNTAIN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 250
SHANNON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1942 250
Trib. of Brush Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1998 250
E. BR. OF WHITE CLAY CR Pennsylvania Scour Critical — Countermeasures Installed Poor 1972 250
Munnell Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1976 250

Scour Critical Rating Codes

Code 2 — UnaddressedBridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken.
Code 3 — Countermeasures InstalledProtective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical.
Code 6 — Countermeasures IneffectiveProtective measures were installed but have been assessed as ineffective. The bridge requires re-evaluation and additional action.

About Scour Critical Bridges

Scour critical bridges have been identified through underwater inspection or analysis as having foundations that are unstable or could become unstable during flood conditions. FHWA requires action plans for all scour critical bridges. Famous scour failures include the 1987 Schoharie Creek Bridge collapse in New York.

All Bridges Poor Condition Historic Bridges Bridge Stats